137 
On thallus of Lecanora glaucoma ; in my herbarium from 
Barmouth (1856). 
19. L. orygnuea, Nyl. 
On Sticta Urvil/ei, Del., Straits of Magellan. 
Occurring on Lichens, but having a most doubtful claim 
to be classed in the genus Lecidea, or, perhaps, among Lichens 
at all, are — 
20. L. Cladoniaria, Nyl., Enum., Suppl., 339; Linds., N. Z. 
Licli. and Fungi, 442 ; x Observ. on Greenland 
Lichens. 
On the squanmles of the horizontal thallus of Cladonia 
bellidiflora, and on anamorphoses of the podetia of C. unci- 
alis. 
Spores 8, oblong, colourless, simple? Possesses pycnidia. 
21. L. Alectorice, Linds., N. Z. Lich. and Fungi, 441. 
On thallus and lower surface of apothecia of Neuropogon 
Taylori, Hook. 
Spores 4-locular, oval, or ellipsoid. 
22. L. obscuroides, Linds., N. Z. Lich. and Fungi, 441. 
On thallus of a variety of Physcia obscura, Ehrh. 
Spores simple, ellipsoid, pale brown or yellow. Under 
the name L. obscuroides it is possible I have included two 
parasitic Fungi or Fungo-lichens — one on the type (P. 
obscura), and the other on its leprose condition. 
Genus II. — Biatorina, Mass. Th. Fries, Arct., 185. 
Species 1. B. tuberculosa, Th. Fr., Arct.. 185 ; Spits- 
berg., 36. 
On thallus of various Peltidece, and of Solorina crocea. 
Spores 8, fusiform, 2-locular, yellow, or colourless. 
Possesses spermogonia. 
2. B. Stereocaulorum, Th. Fr., Arct. 188 ; Spitsb., 36. 
On thallus or phyllocladia of Stereocaulon tomentosurn, var 
alpinum, and S. denudatum. 
Spores 8, oblong, 2-locular, colourless. 
Genus III. — Buellia, Be Not., Th. Fries, Arct., 225. 
Species 1. B. urceolata, Th. Fr., Arct., 233 ; Spitsb., 45. 
Syn. Leciographa, Korb., Par., 464. 
Lecidea parasitica, Smrf. 
On thallus of Verrucaria sphinctrinoides , Nyl. ; Lecidea 
1 “Observations on New Lichens and Fungi collected in Otago, New 
Zealand * Trans. Royal Society of Edin./ vol. xxiv, 1867. 
